{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2019-3814 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-3814 is a high-severity authentication bypass vulnerability in Canonical Ubuntu Linux, published on 27 Mar 2019. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-3814 and fix it if it is affected.\n\nWhat it is: CVE-2019-3814 is a high-severity authentication bypass vulnerability in Canonical Ubuntu Linux, published on 27 Mar 2019. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-3814 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-3814/ (Markdown: https://insights.sbomify.com/CVE-2019-3814/index.md)","id":"CVE-2019-3814","markdown":"https://insights.sbomify.com/CVE-2019-3814/index.md","name":"CVE-2019-3814","record":{"aliases":["ALPINE-CVE-2019-3814","DEBIAN-CVE-2019-3814","DLA-1667-1","DSA-4385-1","GHSA-2727-qgh5-485g","MGASA-2019-0072","RHSA-2019:3467","SUSE-SU-2019:0414-1","UBUNTU-CVE-2019-3814","USN-3881-1","openSUSE-SU-2019:0243-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Dovecot IMAP/POP3 server","requires_auth":"high_privilege","summary":"Remote attackers with valid certificates containing empty usernames can impersonate other users on Dovecot servers.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"dovecot","vendor":"dovecot"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.","ecosystems":["Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::crb","SUSE:Linux Enterprise Module for Server Applications 15"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Auth bypass in dovecot","id":"CVE-2019-3814","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","dovecot:dovecot","opensuse:leap"],"type":"auth_bypass","year":"2019"},"n_packages":17,"n_references":7,"next":{"headline":"Denial of service in systemd","id":"CVE-2019-3815"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot","purl":"pkg:rpm/redhat/dovecot","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-debuginfo","purl":"pkg:rpm/redhat/dovecot-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-debugsource","purl":"pkg:rpm/redhat/dovecot-debugsource","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-mysql","purl":"pkg:rpm/redhat/dovecot-mysql","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-mysql-debuginfo","purl":"pkg:rpm/redhat/dovecot-mysql-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-pgsql","purl":"pkg:rpm/redhat/dovecot-pgsql","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-pgsql-debuginfo","purl":"pkg:rpm/redhat/dovecot-pgsql-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-pigeonhole","purl":"pkg:rpm/redhat/dovecot-pigeonhole","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-pigeonhole-debuginfo","purl":"pkg:rpm/redhat/dovecot-pigeonhole-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot","purl":"pkg:rpm/redhat/dovecot","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-debuginfo","purl":"pkg:rpm/redhat/dovecot-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-debugsource","purl":"pkg:rpm/redhat/dovecot-debugsource","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-devel","purl":"pkg:rpm/redhat/dovecot-devel","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-mysql-debuginfo","purl":"pkg:rpm/redhat/dovecot-mysql-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-pgsql-debuginfo","purl":"pkg:rpm/redhat/dovecot-pgsql-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["1:2.2.36-10.el8"],"introduced":["0"],"last_affected":[],"package":"dovecot-pigeonhole-debuginfo","purl":"pkg:rpm/redhat/dovecot-pigeonhole-debuginfo","source":"RHSA-2019:3467"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15","fixed":["2.3.3-4.7.4"],"introduced":["0"],"last_affected":[],"package":"dovecot23","purl":"pkg:rpm/suse/dovecot23\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015","source":"SUSE-SU-2019:0414-1"}],"prev":{"headline":"Memory corruption in Spice","id":"CVE-2019-3813"},"products":["dovecot"],"published":"2019-03-27","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["dovecot"]},"summary":"Remote attackers with valid certificates containing empty usernames can impersonate other users on Dovecot servers.","url":"https://insights.sbomify.com/CVE-2019-3814/"}